Company lists · Data verified August 2026

Top 25 Commercial litigation law firms based in Canada

Name: Commercial litigation law firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 2,308 companies tracked

There are 2,308 commercial litigation law firms headquartered in Canada (RevenueBase, August 2026). RevenueBase tracks 42,560 professional contacts across them, including 26,047 with verified work emails and 2,728 with mobile numbers. Toronto is the largest hub.

This list covers commercial litigation law firms headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

2,308Companies

42,560Contacts tracked

26,047Verified emails

2,728Mobile numbers

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The 25 largest commercial litigation law firms based in Canada

Ranked by team size

Top 25 of 2,308 commercial litigation law firms based in Canada, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Fasken	Calgary, AB	1,001-5,000	2,259	1,522
2	Mccarthy Tétrault	Calgary, AB	1,001-5,000	1,901	1,217
3	Osler, Hoskin & Harcourt LLP	Toronto, ON	1,001-5,000	1,561	887
4	Blake, Cassels & Graydon LLP	Vancouver, BC	1,001-5,000	1,552	925
5	Miller Thomson LLP	Calgary, AB	1,001-5,000	1,401	895
6	Bennett Jones	Ottawa, ON	501-1,000	1,134	845
7	Torys LLP	Calgary, AB	501-1,000	971	704
8	Cassels Brock & Blackwell LLP	Toronto, ON	501-1,000	810	503
9	BCF	Quebec, QC	501-1,000	715	433
10	Stewart Mckelvey	Fredericton, NB	201-500	594	287
11	Aird & Berlis LLP	Toronto, ON	501-1,000	572	446
12	Lavery	Trois-Rivieres, QC	201-500	543	347
13	Smart & Biggar	Ottawa, ON	501-1,000	517	328
14	Goodmans LLP	Toronto, ON	201-500	494	338
15	Lerners LLP	Kitchener, ON	201-500	447	302
16	Langlois Avocats	Montreal, QC	201-500	347	249
17	Blaney Mcmurtry LLP	Toronto, ON	201-500	298	214
18	Weirfoulds LLP	Toronto, ON	201-500	282	212
19	Burnet, Duckworth & Palmer LLP	Calgary, AB	201-500	271	165
20	Fogler, Rubinoff LLP	Toronto, ON	51-200	238	171
21	Farris LLP	Victoria, BC	201-500	231	157
22	Clark Wilson LLP	Vancouver, BC	201-500	224	147
23	Loopstra Nixon LLP	Toronto, ON	201-500	218	162
24	Lenczner Slaght	Toronto, ON	51-200	214	160
25	Gardiner Roberts LLP	Toronto, ON	51-200	204	132

Showing 25 of 2,308 commercial litigation law firms based in Canada

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Commercial litigation law firms based in Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 584 HQs

2,728Contacts with mobile numbers

114Emails re-verified in last 30 days

Companies by employee count

1-10

1,419

11-50

666

51-200

147

201-500

501-1,000

1,001-5,000

Commercial litigation law firms by metro

Metro	Companies
Commercial litigation law firms in Toronto	584
Commercial litigation law firms in Montreal	186
Commercial litigation law firms in Vancouver	184
Commercial litigation law firms in Calgary	125
Commercial litigation law firms in Ottawa	93
Commercial litigation law firms in Mississauga	80
Commercial litigation law firms in Edmonton	67
Commercial litigation law firms in Markham	37

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “commercial litigation law firms”, with match quality audited by blind human judging, and headquartered in Canada.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Contact records re-verify on a rolling cadence; 114 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many commercial litigation law firms are there based in Canada?

There are 2,308 commercial litigation law firms headquartered in Canada as of August 2026 (RevenueBase).

What is the largest company on this list?

Fasken, headquartered in Calgary, tops this list with the largest team on record.

Which city has the most commercial litigation law firms?

Toronto leads with 584 headquartered companies, followed by Montreal (186) and Vancouver (184).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 26,047 verified decision-maker contacts tracked across these 2,308 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph, the same data that powers RevenueBase's B2B data products and the free research portal.